i've got a pool, but in the last 36 hours we didn't got block!

Pool Hash Rate   4,428.000 KH/s (this was 10+ MHs until "Time Since Last Block 24 hours users leaved my pool)
Pool Efficiency   97.35%
Current Active Workers   11
Current Difficulty   38.1639756
Est. Avg. Time per Round   10 hours 16 minutes 57 seconds
Est. Shares this Round   78160 (done: 706.84%)
Next Network Block   881524    (Current: 881523)
Last Block Found   877227
Time Since Last Block   36 hours 4 minutes 42 seconds

wallet sync successfull, communication too

can it happend 36 hours without block??

wallet info

Version
60406

Protocol Version
60001

Wallet Version
60000

Connections
27